Problem with my Kaspersky 7

I am using combined between Zonealarm firewall and kaspersky 7 antivirus and both of them have worked smoothly until a few days ago. My KA always connected to internet by itself and continuous download something I didn't know. It consumes much bandwidth and make my internet much slower than before. I try scan using ZA, KA, Spybot and couldn't found any suspicious. I try uninstalled and re-installed KA but the problem still appear. What happening? Should I switch antivirus?

contact both kaspersky and ZA and enquire about your issue, maybe try some re-installations.

get ZA suite (which includes kaspersky antivirus built in)

ditch ZA, and get Kaspersky suite.

or, you could go a little further and take a 'cooling-off period' and just enjoy a few trials of different AV's, and make a firm decision on the future.

Click to expand...

Just make sure you Ghost your hard-drive before trying Kaspersky.. or you might be stuck with Chkdsk errors for life. I know I had to reformat my drive after making the mistake of trying it out and then finally I put on NIS2008. Couldn't be happier.

You don't need to switch AV. Kaspersky is a great product with really good detection rate. I would suggest just as C.S.J said to go for ZASS or KIS. My vote you'll find in my sign.
As seperate components they are not working very well together